Identify the 10 differences between the two given pictures.

You are given 16 witch hats. The hats are divided in four different colours – red, blue, green and yellow. Every colour has been assigned to four hats. Now each of the hat will be glued with a label of an arithmetic sign – ‘+’, ‘-‘, ‘x’ or ‘/’. But you can label one sign only once on one colour. In such an arrangement, the hats can be uniquely defined by its colour and symbol.

Can you arrange all the 16 hats in a 4x4 grid in a fashion that no two rows and columns have a repetition of colour or sign?
We have arranged four hats in the below picture to assist you.

Many have heard it, but nobody has ever seen it, and it will not speak back until spoken to. What is it?

Which Number is the odd one out?

A) 7145
B) 2716
C) 5321
D) 4135

Move three sticks of the spiral below to form a square.

Why Aeroplane windows are round?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

I am a three digit number.
My tens digit is five more than my ones digit.
My hundreds digit is eight less than my tens digit.
What number am I?

Can you identify the famous TV character from the rebus below?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle: